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拋物線2--焦點法
Author:
15黃瀚霆
拋物線2--焦點法
GeoGebra
New Resources
兩位數除以一位數（二）
找出對稱軸
兩組對邊相等的四邊形
判斷球體
算柱 (兩位數)
Discover Resources
Relationships between chords and their distances from centre
算幾不等式
堆四顆球
橢圓2-四圓心近似法
test
Discover Topics
Sphere
Rotation
Diagrams
Parametric Curves
Orthocenter